Pipe-derrick.



PATENTED JAN. 7, 1908.

H. SHANNON.

PIPE DERRICK.

APPLICATION FILED AUG. 22, 1907.

2 SHEETS-SHEET 1.

1X b1 eases No. 876,243. PATENTED JAN. 7, 1908.

H. SHANNON.

PIPE DERRICK.

APPLICATION FILED AUG. 22, 1907.

2 SHEETS-SHBET Z.

nucntoz HEZEKIAH SHANNON, OF CYCLONE, PENNSYLVANIA.

PIPE-DERRICK.

Specification of Letters Patent.

Patented Jan. 7, 1908.

Application filed August 22'1907- Serial No. 389,755.

To all whom it may concern:

Be it known that I, HEZEKIAH SHANNON, citizen of the United States, residing at Cyclone, in the county of McKean and State of Pennsylvania, have invented certain new and useful Im rovements in Pipe-Derricks, of which the f0 lowing is a specification, reference being had therein to the accompanying drawing.

My invention relates to. improvements in pipe derricks and pertains more particularly to derricks used in drilling oil wells.

The ob'ect of my invention is to provide a derrick of this character constructed of pipe sections whereby the same may be more readily set up.

Another object of my invention is to provide a more simple, cheap and effective derrick which can be more readily set up.

In the accompanying drawings, Figure 1 is a side elevation of my complete derrick. Fig; 2 is a vertical sectional view showing the means for securing the crown block to the u per end of the derrick. Fig. 3 is a top p an view of the crown block. Fig. 4 is a perspective view of a section of my improved derrick, and Fig. 5 is an enlarged sectional view of one of the standards showing the brace-rods connected thereto.

Referring now to the drawin s 1 represents the base which is practical ly made of cement although any other form of base may be used as this forms no part of my invention. Secured to said base by means of bolts 2 are the four upwardly extending uprights 3, 4, 5, and 6. These uprights may be of any desired height and are made of sections of pipe. The upper ends of said uprights are screw-threaded at 7 and have a coupling 8 screwed thereon, and screwed within the upper end of the coupling 8 are pipe sections 9, 10, 11, and 12, which form a continuation of the pipe sections 3, 4, 5, and 6. The completed derrick is formed of any desired number of sections thus connected together according to the height desired and the length of the section. In order to brace the said sections I provide transverse horizontal brace pi es 13 which have their outer ends llattene at 14 and curved at 15 to correspond with the outer periphery of the coupling 8. It will be seen that two of these braces are thus arranged opposite each coupling, and passing transversel r through the curved portions thereof an through the coupling between the pipe sections are bolts 16 bymeans of which the braces are firmly clamped to the coupling. Riveted or otherwise secured to the flat portion 14 of the brace 13 is the fiat portion 17 of the diagonal brace 18 which extends down and is riveted to the brace below opposite the pipe section. The rivet 18 on the opposite side of the brace 13 is secured to the upwardly extending brace 19 which extends upwardly and is secured to the brace above. The braces 18 and 19 are formed of pipe sections similar to the brace 13 only of a less diameter. The bolt. 16 passing throu h the coupling 8 between the up er and ower u rights allows the horizonta braces 13 to life readily removed without disturbing the uprights.

This same arrangement allows either the upper or lower uprights to be disconnected from the coupling without disturbing the braces.

In Fig. 1 I have shown the diagonal bracerods 20 and 21 so arranged that the walking beam may readily o erate through the space indicated at 22. The upper ends of the upper section have the crown-block 23 restin thereon. The said crown-block is formed 0 two I-beams 24 and 25 which are connected together by transverse bolts 26. Surrounding said bolts between the I-beams are pipe sections 27 and 28 whereby the I-beams are held in their spaced position. Passing through the upper ends of the upright are U- bolts 29 having their upper ends passing through flanges 30 of the I-beam, and carried by the upper ends of said bolts above the flanges are nuts 31 by means of which the I- beams are firmly clamped upon the upper ends of the uprights. Carried by the u per face of the I-bams is a transverse 10c 32 upon which is journaled the shaft 33 carrying a pulley 34 over which the cable 35 passes all of which is well understood by those skilled in the art.

Having thus described my invention what I claim and desire to obtain by Letters Patent, is:

1. A derrick comprising uprights formed of pipes secured together by a screw-threaded couplin transverse braces formed of pipes and having their ends flattened and curved to conform to the coupling and trans verse bolts assing through the curved ortion of the liraces and through the coup ing between the ends of the pipes.

2. A derrick comprisi uprights formed of pipes secured together y screw-threaded couplings, transverse braces formed of pipes and having their ends flattened and curved to conform to the coupling, transverse bolts passing through the curved portion of the races and through the coupling between the ends of the pipe, obliquely arranged braces formed of ipes and having flattened ends on opposite sldes of the flattened portion of the transverse brace, and extendin at right angles to each other, and rivets or olts securing the braces together.

3. A derrick comprising u rights formed of pipes and secured together by screwthreaded couplings, brace-rods secured to said couplings, a crown-block formed of I- beams and resti upon the upper ends of the ufiirights, and U-s a ed bolts passing through t e upper ends of t e u rights, and through the lower flange of the -beam, whereby the same is clamped upon the uprights.

4. A derrick comprising u rights formed of pipes and secured together by screwthreaded couplings, brace-rods secured to said cou lings, a crown-block formed of two parallel -beams resting upon the upper ends wlth the curvature of the couplings,

of the uprights, U-shaped bolts assing through t e upper ends of the uprig ts and through the flanges of the I-beams, sleeves formed of pipes restin between the two I- beams and. transverse olts passing through the I-beams and the sleeves.

5. A derrick comprising u rights formed of pipes and secured toget er by screwthreaded couplings, brace rods formed of pipes having flattened ends to correspopd 0 ts assing through said flattened ends of the braces and the couplings intermediate the pipes, obliquely-arran ed brace rods formed of pipes and having attened ends resting against the flattened end of the first mentioned' braces, and bolts securing the flattened ends of the braces together.

In testimony whereof I aflix my signature in presence of two witnesses.

HEZEKIAH SHANNON.

Witnesses:

HERMAN H. NORTH, MOSES SULLIVAN. 

